Need to keep those injectors clean... don't forget the FI cleaner once or twice a year. Puregas is not toptier and pretty sure nothing from the wawa is.
Good to stay away from regular with a turbo. It'll help prevent plugs from shattering and destroying exhaust valves. I'd recommend premium, at least during the summer heat wave for a few weeks(july/august).
I am ok with any toptier E10 fuel. I run premium with turbos and midgrade with the nonturbos. We have plenty of marine gas stations around here. Even walmart sells 93 octane ethanol free pure gas too. I'll stick with toptier e10. Just didn't see any benefit from pure gas. Would rather put the money toward octane.
toptiergas.com
Amsoil signature is great stuff as your UOA shows. Your visc is fine. Dropping a tad into the 20 grade zone isn't much of an issue. You could use 1 quart of a 40 grade and fill the rest with 30 and see how it holds out. I wasn't too crazy about the overly thick oil churning in my engine. 5w30 is already an upgrade to the recommended 0w20.
Blackstone sometimes leaves much to be desired. Their fuel measurement is a joke. 9.3cst is the cutoff for a 30 grade. Amsoil tends to be stout. So, some shearing..sure.. but most likely some fuel cutting that oil below 9.3cst! Not an issue and why using the 30 grade is smart over the recommended 20 grade. The european is a little thicker without going overboard to the full sump of a 5w40(yet).
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I don't know if the 1.6t had the dual injectors that the 2.5T got. If not, consider an turbo/intakevalve spray cleaner as preventive maintenance, every year or 2nd oil change intervals, like the bottle of quality FI cleaner if sticking with pathetic EPA detergent levels in non toptier fuel.